SamsungMZ-7KE256BW
CrucialCT1000MX500SSD1

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC. Release date ≈ Q4 2017.

Real World Speed
Performance profile from 50,446 user samples
47,211 User Benchmarks
Best Bench: 126% 132GB free
Worst Bench: 67% 186GB free (System drive)
Poor: 67% Great: 126%
SPEED RANK: 142nd / 956
3,235 User Benchmarks
Best Bench: 126% 720GB free
Worst Bench: 75% 722GB free (System drive)
Poor: 75% Great: 126%
SPEED RANK: 130th / 956
Effective Speed
Effective SSD Speed
104 % 109 % Slightly faster effective speed.
+5%
Read
Avg. Sequential Read Speed
472 MB/s 479 MB/s +1%
Write
Avg. Sequential Write Speed
414 MB/s 419 MB/s +1%
4K Read
Avg. 4K Random Read Speed
33.8 MB/s +1% 33.6 MB/s
4K Write
Avg. 4K Random Write Speed
93.8 MB/s +2% 91.8 MB/s
Mixed
Avg. Sequential Mixed IO Speed
339 MB/s 395 MB/s Faster mixed IO speed.
+17%
4K Mixed
Avg. 4K Random Mixed IO Speed
44.6 MB/s 48.6 MB/s Slightly faster random mixed IO.
+9%
SusWrite
Avg. Sustained Write Speed
362 MB/s 409 MB/s Slightly faster sustained write speed.
+13%
Read
Peak Sequential Read Speed
516 MB/s +0% 514 MB/s
Write
Peak Sequential Write Speed
490 MB/s +4% 470 MB/s
4K Read
Peak 4K Random Read Speed
44.3 MB/s Slightly faster peak random read.
+9%
40.8 MB/s
4K Write
Peak 4K Random Write Speed
130 MB/s Slightly faster peak random write.
+7%
122 MB/s
Mixed
Peak Sequential Mixed IO Speed
384 MB/s 435 MB/s Slightly faster peak mixed IO speed.
+13%
4K Mixed
Peak 4K Random Mixed IO Speed
58.2 MB/s 59.3 MB/s +2%
SusWrite
Peak Sequential Sustained Write 60s Average
481 MB/s Slightly faster peak sustained write speed.
+5%
456 MB/s
Market Share
Based on 8,592,927 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.67 % Hugely higher market share.
+191%
0.23 %
Value
Value For Money
81.6 % 209 % Hugely better value.
+156%
User Rating
UBM User Rating
95 % Much more popular.
+38%
69 %
Price
Price (score)
$134 Cheaper.
+16%
$160
Age
Newest
50 Months 8+ Months Hugely more recent.
+84%
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s 389 MB/s +0%
DQ Write
Peak 4K-64Thread Write Speed
353 MB/s 360 MB/s +2%
AS-SSD Total
AS-SSD Total Score
1,279 Pts +1% 1269 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
358 MB/s Faster peak deep queue mixed IO.
+16%
308 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
338 MB/s 350 MB/s +4%
ADQ Write
Avg. 4K-64Thread Write Speed
299 MB/s 313 MB/s +5%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
296 MB/s Slightly faster deep queue mixed IO.
+8%
273 MB/s
Capacity
Capacity
256GB 1TB
ADVERTISEMENT

The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

MORE DETAILS

Crucial MX500 1TB performance within a whisker of the Samsung 850 EVO, which in real life means it feels just as fast, at 11% lower price. Saved £30! [Jan '18 SUpstone5]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 2018 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

ADVERTISEMENT

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $344Samsung 850 Evo 250GB $84
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $115
Intel Core i5-8600K $249AMD RX 480 $280Samsung 850 Pro 256GB $134
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $78G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $167SanDisk Ultra Fit 32GB $11
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback